212719867 has 2 divisors, whose sum is σ = 212719868. Its totient is φ = 212719866.

The previous prime is 212719853. The next prime is 212719937. The reversal of 212719867 is 768917212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212719867 - 2²⁷ = 78502139 is a prime.

It is not a weakly prime, because it can be changed into another prime (212719807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106359933 + 106359934.

It is an arithmetic number, because the mean of its divisors is an integer number (106359934).

Almost surely, 2^212719867 is an apocalyptic number.

212719867 is a deficient number, since it is larger than the sum of its proper divisors (1).

212719867 is an equidigital number, since it uses as much as digits as its factorization.

212719867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 43.

The square root of 212719867 is about 14584.9191633002. The cubic root of 212719867 is about 596.9473348808.

The spelling of 212719867 in words is "two hundred twelve million, seven hundred nineteen thousand, eight hundred sixty-seven".